Sixth Street Specialty Lending, Inc.: management transactions · United States · SEC (Form 4)

About Sixth Street Specialty Lending, Inc.

Sixth Street Specialty Lending, Inc. (NYSE: TSLX) is a U.S.-based specialty finance company structured as a business development company (BDC) and listed on the New York Stock Exchange in the United States. Its principal executive offices are in Dallas, Texas. The company was formed on July 21, 2010, and its shares began trading on the NYSE on March 21, 2014 under the ticker TSLX. ([sec.gov](https://www.sec.gov/Archives/edgar/data/1508655/000119312525078106/d876799dars.pdf)) The company’s business model is centered on lending to, and selectively investing in, middle-market companies, primarily in the United States. TSLX is externally managed by Sixth Street Specialty Lending Advisers, LLC, an SEC-registered investment adviser affiliated with Sixth Street. That setup gives the company access to a dedicated origination and investment team while preserving the flexibility typical of private credit and specialty lending vehicles. ([sec.gov](https://www.sec.gov/Archives/edgar/data/1508655/000119312525078106/d876799dars.pdf)) From a competitive standpoint, TSLX operates in the direct lending and specialty credit segment, where sourcing quality, underwriting discipline, and the ability to structure tailored financing solutions are key differentiators. Sixth Street presents itself as a global investment platform founded in 2009 with broad capabilities across direct lending, public and private credit, structured solutions, opportunities, infrastructure, and other collaborative investment strategies. For TSLX, that broader platform can provide strategic reach, market intelligence, and execution capabilities beyond a standalone lender. ([sixthstreet.com](https://sixthstreet.com/?utm_source=openai)) Its core products and services include direct loans, senior secured financings, structured credit exposures, and selective investments in middle-market corporate credits. The broader Sixth Street platform also notes a European specialty lending franchise, which expands the group’s geographic footprint, although TSLX itself remains primarily focused on U.S. borrowers and U.S.-domiciled middle-market lending opportunities. ([sixthstreet.com](https://sixthstreet.com/firm_news/sixth-street-closes-second-fund-for-direct-lending-in-europe-at-1-billion-hard-cap/?utm_source=openai)) Recent highlights reinforce the company’s positioning within a larger and active private-credit ecosystem. In 2025, Sixth Street announced multiple strategic transactions across specialty finance and asset-based financing, underscoring continued platform expansion and capital deployment. The latest SEC filing confirms TSLX’s ongoing model: a publicly traded, externally managed BDC focused on middle-market lending, with a portfolio designed to generate recurring income through predominantly floating-rate loans. ([businesswire.com](https://www.businesswire.com/news/home/20250227285807/en/Figure-Technology-Solutions-and-Sixth-Street-Form-Joint-Venture-to-Bring-Over-%242-Billion-of-Liquidity-and-Through-The-Cycle-Stability-to-Non-Agency-Mortgage-Market?utm_source=openai))